From the article you link:

“That’s where you get the idea that there’s something wrong with gay men because gay men are sissies, effeminate, possess feminine attributes, etc. They’re first equated with women and then degraded in ways that have to do with women. You can’t have homophobia minus the sexism and have it take anything like a recognizable shape. It depends on sexism.”

Yes, I absolutely agree, and I’ve written much the same over the years.

This is also, incidentally, why the gay and trans equality movements have so many interests in common. While transgender people and gay people are unquestionably different from one another, we face much of the same struggle against sexism, without which neither homophobia nor transphobia would make coherent sense.